/*
* Seldon -- open source prediction engine
* =======================================
* Copyright 2011-2015 Seldon Technologies Ltd and Rummble Ltd (http://www.seldon.io/)
*
**********************************************************************************************
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
**********************************************************************************************
*/
package io.seldon.client.test;
import io.seldon.client.algorithm.AlgorithmOptions;
import io.seldon.client.algorithm.CFAlgorithm;
import org.junit.Assert;
import org.junit.Test;
/**
* Created by: marc on 25/11/2011 at 10:53
*/
public class AlgorithmOptionsTest extends BaseClientTest {
@Test
public void simpleTest() {
AlgorithmOptions algorithmOptions = new AlgorithmOptions()
.withSorter(CFAlgorithm.CF_SORTER.RELEVANCE)
.withSorter(CFAlgorithm.CF_SORTER.DEMOGRAPHICS)
.withItemComparator(CFAlgorithm.CF_ITEM_COMPARATOR.MAHOUT_ITEM)
.withPredictor(CFAlgorithm.CF_PREDICTOR.WEIGHTED_MEAN)
.withPredictor(CFAlgorithm.CF_PREDICTOR.USER_AVG)
.withRecommender(CFAlgorithm.CF_RECOMMENDER.TRUST_ITEMBASED)
.withSorterStrategy(CFAlgorithm.CF_STRATEGY.FIRST_SUCCESSFUL)
.withItemComparatorStrategy(CFAlgorithm.CF_STRATEGY.WEIGHTED);
Assert.assertEquals(algorithmOptions.toString(),
"sorters:RELEVANCE|DEMOGRAPHICS,item_comparators:MAHOUT_ITEM,recommenders:TRUST_ITEMBASED,predictors:WEIGHTED_MEAN|USER_AVG,sorter_strategy:FIRST_SUCCESSFUL,item_comparator_strategy:WEIGHTED");
Assert.assertEquals(new AlgorithmOptions().toString(), "");
}
@Test
public void simpleTestWithClusterWeights() {
AlgorithmOptions algorithmOptions = new AlgorithmOptions()
.withSorter(CFAlgorithm.CF_SORTER.RELEVANCE)
.withSorter(CFAlgorithm.CF_SORTER.DEMOGRAPHICS)
.withItemComparator(CFAlgorithm.CF_ITEM_COMPARATOR.MAHOUT_ITEM)
.withPredictor(CFAlgorithm.CF_PREDICTOR.WEIGHTED_MEAN)
.withPredictor(CFAlgorithm.CF_PREDICTOR.USER_AVG)
.withRecommender(CFAlgorithm.CF_RECOMMENDER.TRUST_ITEMBASED)
.withSorterStrategy(CFAlgorithm.CF_STRATEGY.FIRST_SUCCESSFUL)
.withItemComparatorStrategy(CFAlgorithm.CF_STRATEGY.WEIGHTED)
.withLongTermClusterWeight(2.5)
.withShortTermClusterWeight(1.5);
Assert.assertEquals(algorithmOptions.toString(),
"sorters:RELEVANCE|DEMOGRAPHICS,item_comparators:MAHOUT_ITEM,recommenders:TRUST_ITEMBASED,predictors:WEIGHTED_MEAN|USER_AVG,sorter_strategy:FIRST_SUCCESSFUL,item_comparator_strategy:WEIGHTED,long_term_cluster_weight:2.5,short_term_cluster_weight:1.5");
Assert.assertEquals(new AlgorithmOptions().toString(), "");
}
}